12782235 has 8 divisors (see below), whose sum is σ = 20451600. Its totient is φ = 6817184.

The previous prime is 12782233. The next prime is 12782239. The reversal of 12782235 is 53228721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12782235 - 2¹ = 12782233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12782233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426060 + ... + 426089.

It is an arithmetic number, because the mean of its divisors is an integer number (2556450).

Almost surely, 2^12782235 is an apocalyptic number.

12782235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12782235 is a deficient number, since it is larger than the sum of its proper divisors (7669365).

12782235 is an equidigital number, since it uses as much as digits as its factorization.

12782235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852157.

The product of its digits is 6720, while the sum is 30.

The square root of 12782235 is about 3575.2251677342. The cubic root of 12782235 is about 233.8131498381.

The spelling of 12782235 in words is "twelve million, seven hundred eighty-two thousand, two hundred thirty-five".